Lorraine Is a 46-Year-Old Woman Who Has a Body Mass

Lorraine is a 46-year-old woman who has a body mass index (BMI) of 21 and who is generally healthy. Based on current recommendations by the National Institutes of Health (NIH) , what exercise program would you suggest to Lorraine to maintain her current level of fitness?

A) None-she is already maintaining her fitness level
B) 20 minutes of light-intensity exercise per day, 3 days per week
C) 30 minutes of moderate-intensity exercise per day, 5 days per week
D) 60 minutes of heavy-intensity exercise per day, 6 days per week